Mistakes & fixes

Reinforcing or covering a hole with an added piece of fabric, sewn behind the damage for invisible support or over the top as a visible feature. Match the patch fabric's weight and stretch to the garment.

A piece cut with its markings or nap direction inverted usually happens when the pattern was flipped without checking the layout diagram. Always follow the diagram exactly and keep directional details facing one way.

A finished garment coming out drastically too big or small, even with correct sizing chosen, usually means a home-printed PDF pattern was printed without disabling page scaling. Always print and measure the test square first.

Small balls of fiber forming on a knit's surface from friction during wear come from loose, weaker fibers tangling together. Use a fabric shaver or comb to remove pills, and wash inside out on gentle cycle.

Too much foot pressure flattens pile and stretches knits; too little lets fabric wander or fail to feed. Adjust the pressure dial to suit the fabric weight, lowering it for delicate or bulky fabrics.

A shiny, flattened patch on fabric after ironing comes from too much heat and pressure crushing the fibers, common on wool and synthetics. Press with a pressing cloth and let steam, not pressure, do the work.

A seam that gathers or ripples along its length is caused by tension set too tight, a stitch length wrong for the fabric, or sewing fine fabric without stabilizing. Loosen tension and stabilize lightweight fabrics.

Small folds at the top of a set-in sleeve cap come from easing stitches not distributed evenly around the curve. Run two rows of ease stitching, gather gently, and pin generously before sewing.

Topstitching that gathers fabric into small folds instead of lying flat comes from tension too tight, a stitch too dense, or sewing bulky layers without a walking foot. Loosen tension and use a walking foot.

A zipper tape that ripples once pressed, though it lay flat while sewing, comes from ironing directly over the teeth and tape without support underneath. Press from the wrong side over a seam roll.